Thomas Mercer Ltd., St. Albans, England, for M. Low, Inc., New York, break circuit chronometer with mechanism for sending a signal at regular intervals, 13 jewel, two day fusee movement with Z balance, and spring detent escapement, an auxiliary wheel

Thomas Mercer Ltd., St. Albans, England, for M. Low, Inc., New York, break circuit chronometer with mechanism for sending a signal at regular intervals, 13 jewel, two day fusee movement with Z balance, and spring detent escapement, an auxiliary wheel mounted to the the fourth wheel arbor closing a pair of contacts five times per minute at ten second intervals, and contained in an aluminum canister silvered 24 hour dial, blued steel hands, all contained in a black Bakelite box with aluminum corners, serial # 23506, mid 20th century center arbor broken off above plate, balance pivot broken, balance jeweling broken, box lid with separation, foam lining badly degraded